000 00503nam a2200193 a 4500
005 20210219153317.0
008 991125n 000 0 u
035 _aUPN01000090759
100 _aGranger, Daniel
222 _aCHANGE
245 _aOpen universities : closing the distances to learning
300 _a44-47
362 _a22, No. 4, 1990
505 _aEnero 1991
653 0 _aEDUCACION A DISTANCIA
653 0 _aUNIVERSIDADES ABIERTAS
904 _aAC
_b028570
905 _aArticulo
999 _c73752
_d73752